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Summary of significant accounting policies (Tables) | 12 Months Ended
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Dec. 31, 2012
Accounting Policies [Abstract] |
Company's Revenues | The revenues for each of these lines are as follows:
Years Ended December 31, |  | 2012 |  |  | 2011 |
(in thousands) |  |  |  |  |  |  |  |
Refrigerant and reclamation sales |  | $ | 52,220 |  |  | $ | 40,346 |
RefrigerantSide® Services |  |  | 4,227 |  |  |  | 3,976 |
Total |  | $ | 56,447 |  |  | $ | 44,322 |
Reconciliation of shares used to determine net income per share | The reconciliation of shares used to determine net income per share is as follows (dollars in thousands):
|  | Years Ended December 31, |
|  | 2012 |  |  | 2011 |
Net income |  | $ | 12,801 |  |  | $ | 1,034 |
Weighted average number of shares – basic |  |  | 23,906,706 |  |  |  | 23,780,814 |
Shares underlying warrants |  |  | 315,494 |  |  |  | 10,966 |
Shares underlying options |  |  | 2,131,760 |  |  |  | 1,011,267 |
Weighted average number of shares outstanding – diluted |  |  | 26,353,960 |  |  |  | 24,803,047 |

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- Definition Tabular disclosure of all significant reconciling items in the reconciliation of total revenues from reportable segments to the entity's consolidated revenues. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 31 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8924-108599 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8906-108599 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 131 -Paragraph 32 -Subparagraph a -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Tabular disclosure of the reconciliation of basic net earnings per share (or unit) to diluted earnings per share (or unit). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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